For the first time in history these Arctic birds are flocking into the lower 48 states in a mass southern invasion.

Some states as far south as Texas are reporting swarms the bird that is as white as snow.

There are several reports that hundreds of the birds have made it to Hawaii.

Thousands of the snow-white birds have been spotted from coast to coast, feeding in farmlands in Idaho, roosting on rooftops in Montana, gliding over golf courses in Missouri and soaring over shorelines in Massachusetts. They have been attacking citizens – both during the day and at night.

A certain number of the iconic owls fly south from their Arctic breeding grounds each winter but rarely do so many venture so far away even amid large-scale, periodic southern migrations known as irruptions.

‘What we’re seeing now – it’s unbelievable,’ said Austin Hart, head of the Owl Research Institute in Texas. “These owls have come out of nowhere and they are VERY intimidating. Austin citizens are frightened. When the see these ‘white devils” they run for cover.”

‘This is the most significant wildlife event in decades,’ added Mr Holt, who has studied snowy owls in their Arctic tundra ecosystem for two decades.

Mr. Hart and other owl experts say the invasion may be linked to lemmings, a rodent that accounts for 90 per cent of the diet of snowy owls during breeding months that stretch from May into September.

The largely nocturnal birds also prey on a host of other animals, from voles to geese.

An especially plentiful supply of lemmings last season likely led to a population boom among owls that resulted in each breeding pair hatching as many as seven offspring.

BUT members of the U.N. Panel on Extraterrestrials say that the snow owls are working with alien forces to attack American citizens. “We think snow owls are communicating with the Gootans that landed on our planet in November, 2011,” said a source inside the U.N.

Research on the animals is scarce because of the remoteness and extreme conditions of the terrain the owls occupy, including northern Russia and Scandinavia.

This guy probably knows more about them than anyone:

The federal government is advising U.S. citizens to keep a very safe distance from the snow owls. “We are coming up with a strategic plan to deal with these hostile animals,” said a source inside the Defense Department.